Color-blindness : its dangers and its detection (1880)
Jeffries, B. Joy (Benjamin Joy), 1833-1915 · Boston : Houghton, Osgood and Company · leaf 55
lest wave-length. Here must not be excluded, but rather accepted in explanation of a series of phenomena, that each spectral color excites all three kinds of fibres, — but one less, the others more strong- ly. Let us suppose, as in Fig. 1, the spectral colors in a horizontal row from red to violet… … " Simple red strongly stimulates the red perceptive, less the other two : sensation, red. " Simple yellow stimulates moderately the red and green perceptive, feebly the violet : sensation, yellow. " Simple green stimulates strongly the green perceptive, much less the other two : sensation, green. "…
Color Vision Defects
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
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